Having thus shown, as I think I have, that an essential element in the basis of the "more perfect Union" on the question of slavery, was the principle of non-extension, we find the first failure to assert this principle was in the omission to apply it to the Louisiana purchase. The importation of slaves into that territory was immediately prohibited. That probably cut off the only source of supply from which danger of extension was then apprehended. The policy of the Government was well understood, and no apprehension of a practical departure from it existed. There was nothing in the circumstance of the purchase, or the reasons for making it, to excite such apprehension. But it was seen on the application of Missouri for admission, that the ordinance of 1787 should have been applied to it at the time of the purchase. If it had been, Louisiana, Missouri, and Arkansas would never have become slave States (the few slaves in New Orleans and vicinity being emancipated, as they should have been, upon some equitable principle), and the Missouri Compromise, which was the second departure from the original policy, would never have been made. The third was the annexation of Texas as a slave State, and the argument to divide it into three or four more. Annexation led to the war with Mexico, and the acquisition of a large part of her territory, and to the compromise of 1850, by which it was Congressionally agreed that the States formed in that territory might be admitted with slavery, if their Constitutions should so prescribe. This was the fourth departure from the original policy of prohibition. The fifth was the repeal of the Missouri Compromise in 1850, and the attempts to subjugate and enslave Kansas. That repeal made the change from the original policy radical and total. Certainly it is high time "to restore the Union and Constitution in the spirit in which they were established by the fathers."